//?receiver.cpp?:?定義控制臺應用程序的入口點。
//


#include?“stdafx.h“
#include?
#include?
#include?“../header/ARQ.h“
#include?“../header/Exception.h“

//?服務器端口
#define?SERVER_PORT?2280

#pragma?comment（lib“ws2_32.lib“）//設置link時的lib庫


using?namespace?std;

SOCKET?PrimaryUDP;
char?FileSavePath[MAX_PATH];

void?InitWinSock（）
{
	WSADATA?wsaData;

	if?（WSAStartup（MAKEWORD（2?2）?&wsaData）?!=?0）
	{
		throw?Exception（“Windows?sockets?2.2?startup?unsuccessful“）;
	}
	else{
		printf（“Using?%s?（Status:?%s）\n“
			wsaData.szDescription?wsaData.szSystemStatus）;
		printf（“with?API?versions?%d.%d?to?%d.%d\n\n“
			LOBYTE（wsaData.wVersion）?HIBYTE（wsaData.wVersion）
			LOBYTE（wsaData.wHighVersion）?HIBYTE（wsaData.wHighVersion））;
	}
}

void?mksock（int?type）
{
	PrimaryUDP?=?socket（AF_INET?type?0）;
	if?（PrimaryUDP?	{
		throw?Exception（“create?socket?error“）;
	}
}

void?BindSock（）
{
	sockaddr_in?sin;
	sin.sin_addr.S_un.S_addr?=?INADDR_ANY;
	sin.sin_family?=?AF_INET;
	sin.sin_port?=?htons（SERVER_PORT）;

	if?（bind（PrimaryUDP?（struct?sockaddr*）&sin?sizeof（sin））?		throw?Exception（“bind?error“）;
}

DWORD?WINAPI?ARecv（LPVOID?lpParam）
{
	FILE?*?file?=?NULL;

	sockaddr_in?remote;
	int?sinlen?=?sizeof（remote）;
	BSC?bufferbsc;
	bsc.header?=?STX;bsc.tail?=?ETX;
	memset（bsc.data?0?MAXBSCLENGTH）;
	int?iread?=?0;
	unsigned?long?dwReceived?=?0;
	bool?number?=?true;//發送方的數據開始發送時的序號設為0為了判斷是不是第一次一段數據所以這里標為1
	while?（true）
	{
		iread?=?recvfrom（PrimaryUDP（char*）&buffersizeof（buffer）0（sockaddr*）&remote&sinlen）;
		if?（SOCKET_ERROR?==?iread?||?buffer.header?!=?STX?||?buffer.tail?!=?ETX）
		{
			//	數據錯誤發送負應答
			cout<<“received?a?error?data“<			bsc.bcc?=?NAK;bsc.number=false;//number這時沒有實際的意義
			sendto（PrimaryUDP（char*）&bscsizeof（bsc）0（sockaddr*）&remotesinlen）;
			continue;
		}
		if?（buffer.number?==?number）
		{
			//	重復收到數據發送應答消息
			cout<<“received?a?repeat?data“<			bsc.bcc?=?ACK;
			bsc.number?=?buffer.number;
			sendto（PrimaryUDP（char*）&bscsizeof（bsc）0（sockaddr*）&remotesinlen）;
			continue;
		}
		switch（buffer.bcc）
		{
		case?ENQ:
			{
				number?=?!number;//準備接收下一段數據
				//	文件請求
				cout<<“received?a?file?request?messagefilename:“<				//	打開文件
				if（strcmp（（FileSavePath+strlen（FileSavePath）-1）“\\“）!=0）
					strcat（FileSavePath“\\“）;
				strcat（FileSavePathbuffer.data）;
				if（（file?=?fopen（FileSavePath?“ab“））?==?NULL）
				{
					cout<<“file?open?failed“<					return?-1;
				}
				break;
			}
		case?SYN:
			{
				number?=?!number;
				//	文字發送中
				int?i?=0;
				if（（i=fwrite（buffer.data?sizeof（char）?sizeof（buffer.data）?file））?<=?0）
				{
					cout?<					return?-1;
				}
				dwReceived?+=?i;
				cout<<“write:“<				break;
			}
		case?EOT:
			{
				number?=?!number;
				//	文件發送完畢
				cout<<“file?receive

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????52224??2008-02-29?11:31??ARQDemo\ARQDemo.ncb

?????文件???????1418??2008-02-28?12:33??ARQDemo\ARQDemo.sln

????..A..H.?????12288??2008-02-29?11:31??ARQDemo\ARQDemo.suo

?????文件????????667??2009-11-05?14:10??ARQDemo\header\ARQ.h

?????文件????????403??2008-02-14?09:25??ARQDemo\header\Exception.h

?????文件????2171904??2010-04-11?21:27??ARQDemo\receiver\Debug\receiver.bsc

?????文件?????548951??2010-04-11?21:27??ARQDemo\receiver\Debug\receiver.exe

?????文件?????800252??2010-04-11?21:27??ARQDemo\receiver\Debug\receiver.ilk

?????文件?????204147??2010-04-11?21:27??ARQDemo\receiver\Debug\receiver.obj

?????文件????6487648??2010-04-11?21:27??ARQDemo\receiver\Debug\receiver.pch

?????文件????1123328??2010-04-11?21:27??ARQDemo\receiver\Debug\receiver.pdb

?????文件??????????0??2010-04-11?21:27??ARQDemo\receiver\Debug\receiver.sbr

?????文件?????205824??2010-04-11?21:27??ARQDemo\receiver\Debug\vc60.idb

?????文件?????143360??2010-04-11?21:27??ARQDemo\receiver\Debug\vc60.pdb

?????文件????????997??2008-02-28?12:33??ARQDemo\receiver\ReadMe.txt

?????文件???????3912??2010-04-11?21:27??ARQDemo\receiver\receiver.cpp

?????文件???????3429??2009-11-04?18:56??ARQDemo\receiver\receiver.dsp

?????文件????????541??2009-11-04?18:56??ARQDemo\receiver\receiver.dsw

?????文件??????41984??2010-04-11?21:28??ARQDemo\receiver\receiver.ncb

?????文件??????49664??2010-04-11?21:28??ARQDemo\receiver\receiver.opt

?????文件???????1335??2010-04-11?21:27??ARQDemo\receiver\receiver.plg

?????文件???????3958??2008-02-28?12:51??ARQDemo\receiver\receiver.vcproj

?????文件????????212??2008-02-28?12:33??ARQDemo\receiver\stdafx.cpp

?????文件????????195??2008-02-28?12:33??ARQDemo\receiver\stdafx.h

?????文件????2171904??2009-11-14?20:12??ARQDemo\sender\Debug\sender.bsc

?????文件?????548957??2009-11-14?20:12??ARQDemo\sender\Debug\sender.exe

?????文件?????807356??2009-11-14?20:12??ARQDemo\sender\Debug\sender.ilk

?????文件?????206112??2009-11-14?20:12??ARQDemo\sender\Debug\sender.obj

?????文件????6475360??2009-11-05?14:20??ARQDemo\sender\Debug\sender.pch

?????文件????1123328??2009-11-14?20:12??ARQDemo\sender\Debug\sender.pdb

............此處省略22個文件信息